Xavier ChermainSep 21, 2023

Hello, I'm Xavier

I am a researcher focusing on Computer Graphics and, more precisely, on modeling, rendering, and fabrication of appearances.

I developed techniques for real-time #glint rendering:
- https://www.shadertoy.com/view/wstcRH
- https://xavierchermain.github.io/publications/real-time-glint

I also proposed a new #anisotropic appearance fabrication method, only with a #3Dprinter and a #glossy filament:
- https://xavierchermain.github.io/fdm_aa/

I hope you will find my work interesting or inspiring. Don't hesitate to tell me!

GeekProjects NewsAug 31, 2023
Copper Be Gone: The Chemistry Behind PCB Etching https://hackaday.com/2023/08/31/copper-be-gone-the-chemistry-behind-pcb-etching/ #sodiumpersulfate #chemistryhacks #ferricchloride #Hydrochloric #anisotropic #Chemistry #isotropic #oxidation #reduction #Featured #peroxide #etching #Skills #copper #cupric #acid #pcb
Copper Be Gone: The Chemistry Behind PCB Etching

For a lot of reasons, home etching of PCBs is somewhat of a dying art. The main reason is the rise of quick-turn PCB fabrication services, of course; when you can send your Gerbers off and receive …

Hackaday
katch wreckJul 13, 2023

"Here we show that a leaky oscillation with #anisotropic perturbation rather can achieve completely zero crosstalk realized by subwavelength grating (SWG) #metamaterials. The oscillating fields in the SWGs enable coupling coefficients in each direction to counteract each other, resulting in completely zero crosstalk."

https://www.nature.com/articles/s41377-023-01184-5

#waveguide #photonics

Anisotropic leaky-like perturbation with subwavelength gratings enables zero crosstalk - Light: Science & Applications

Anisotropic leaky mode, defying the expectation, achieves zero crosstalk, enhancing photonic integration density. Applied in TM mode using subwavelength gratings, coupling length extends 100x.

Nature
Show threadJohn Faithfull🌍🇪🇺🏴󠁧󠁢󠁳󠁣󠁴󠁿🧡 ✊🏼✊🏿Dec 23, 2022
@mcbridejc @mcbridejc cont'd... Most crystalline materials are #anisotropic - they transmit (or reflect) light resolved into two new polarized rays, with different velocities (light velocity is only constant in a vacuum), producing phase shift. As the upper Polaroid repolarizes these rotated and phase-shifted rays, destructive interference of some wavelengths can occur, producing so-called birefringence colours... /More
Universität JenaFeb 25, 2021

A #cobalt compound with #anisotropic magnetic properties might serve as computing unit in future #quantum computers. It was developed by researchers at @[email protected] and @[email protected].

➡️ https://www.uni-jena.de/en/210225_Plass

Pioneering molecule on its way into quantum computers

Researchers from the University of Jena and University of Florence, develop cobalt compound with special quantum properties